Strike Industries Enhanced Ultimate Dust Cover - Capsule - Black

Manufactured by Strike Industries
SKU: SI-AR-UDC-E-223-03-BK
MPN: SI AR-UDC-E-03-223 BK
Manufactured by Strike Industries
53 Reviews

Out of Stock



Strike Industries products are designed by shooting experts for the shooting sportsman.

The Strike Industries Enhanced Ultimate Dust Cover is the world's first quick disconnect ejection port cover for the AR-15! Manufactured from high-density Nylon polymer, the UDC will never corrode, rust, fade, or deform. It features an internal True Seal lip to better protect your rifle from the elements. A built-in adjustable detent screw allows you to easily compensate for receiver wear, or increase/decrease opening power.

The spring-loaded internal detent rod provides easy installation and take down, often taking just 5-10 seconds! This enhanced version is thinner, allowing greater compatibility with nearly any AR-15 upper receiver, including billet uppers, on the market as well as reducing the weight to a minimal 0.3 oz! The new design also features a cut-out window for easy installation or removal, all without impacting the True-Seal capabilities!

  • Spring-loaded, internal detent rod
  • Polymer construction
  • Cut-out window
  • Resistant to corrosion, rust and fading
  • True Seal internal lip
  • Adjustable detent set screw
  • Length:  3.46”
  • Weight:  0.3 oz
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BrandStrike Industries
EngravingCapsule Pattern

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see



Super easy install

AR-15 dust cover or bolt carrier cover plastic


The cover is awesome seals really well and looks nice. It was easy to install. I would buy more if the opportunity arises. It was the plastic cover with the indents going across.



The way these attach is a game changer. Fit and finish is great seals much better than "MilSpec" that said the way this dude attaches sells it all day every day.

No dust no bust


These are by far the best dust covers for your ar style rifle. Drop in work great and look super sharp.

Great Cover


This thing looks great on my AR. Great design and awesome looks! Easy on and off

Nice Item


Works great, easy to install, its plastic but seems to be very strong and I honestly believe it would last longer than the mil spec dust cover. Also it does seem to create a tighter seal. The only issue I have is that its color is just slightly lighter than the upper, only because they are 2 different materials, the plastic cover won't get that dark deep black color to it. But other than that it looks great.

A plus performance again


Ordered the part, got all the progress emails, part arrived in 2 days was GTG. Primary Arms has always met or exceeded my expectations. Great products, great prices, great people!!!

Dust cover


Great item. Fits as it should. Looks and works great. IOrdered a second one.

Easy to install


Easiest dust cover to install. Fit was good on my Spartan Upper.

Great innovative product!


Awesome product and couldn't be happier with Prinary Arms!